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  <h4>这个表格有一个标题，以及粗边框：</h4>
  
  <table border="6">
  <caption>我的标题</caption>
  <tr>
    <td>100</td>
    <td>200</td>
    <td>300</td>
  </tr>
  <tr>
    <td>400</td>
    <td>500</td>
    <td>600</td>
  </tr>
  </table>
  
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